`open-sec.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3037::6815:3a55^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:9e63^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.58.85^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.158.99^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dahlia.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a59^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dahlia.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c059^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dahlia.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2059^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dahlia.ns.cloudflare.com`
		A	108.162.192.89^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dahlia.ns.cloudflare.com`
		A	172.64.32.89^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dahlia.ns.cloudflare.com`
		A	173.245.58.89^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dahlia.ns.cloudflare.com`
NS	`sullivan.ns.cloudflare.com`
		A	2606:4700:58::a29f:2ca1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sullivan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3a1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sullivan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23a1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sullivan.ns.cloudflare.com`
		A	108.162.195.161^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sullivan.ns.cloudflare.com`
		A	162.159.44.161^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sullivan.ns.cloudflare.com`
		A	172.64.35.161^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sullivan.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.58.85, 172.67.158.99
		IPv6 hints	2606:4700:3037::6815:3a55, 2606:4700:3037::ac43:9e63
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=199, name=cloudflare-ech.com
SOA	`dahlia.ns.cloudflare.com`dns@cloudflare.com serial=2401000282

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1777120126

Previously MX for

open-sec.org

mail.open-sec.org

Subdomains

mail.open-sec.org

Same first word

open-sec.org

open-sec.com

Similar names

npo-eesc.org

spec-one.com

epson-ec.com

neo-spec.com

open-esc.com

DNS History

15 records (6 active, 9 former)

●NSdahlia.ns.cloudflare.com2026-04-23 → 2026-04-25 · 3 obs

○ 2020-03-09 12:59:28
● 2026-04-23 08:15:34
● 2026-04-25 12:48:42

○NSdns-s01.nlrs.jp2015-12-11 → 2016-07-12 · 5 obs

○ 2015-08-06 11:02:06
● 2015-12-11 09:12:20
● 2016-07-12 09:35:48
○ 2017-03-25 06:10:34
○ 2026-04-25 12:48:42

○NSdns-s02.nlrs.jp2015-12-11 → 2016-07-12 · 5 obs

○ 2015-08-06 11:02:06
● 2015-12-11 09:12:20
● 2016-07-12 09:35:48
○ 2017-03-25 06:10:34
○ 2026-04-25 12:48:42

○NSns1.parkingcrew.net2015-08-06 → 2017-03-25 · 6 obs

● 2015-08-06 11:02:06
○ 2015-12-11 09:12:20
○ 2016-07-12 09:35:48
● 2017-03-25 06:10:34
○ 2020-03-09 12:59:28
○ 2026-04-25 12:48:42

○NSns2.parkingcrew.net2015-08-06 → 2017-03-25 · 6 obs

● 2015-08-06 11:02:06
○ 2015-12-11 09:12:20
○ 2016-07-12 09:35:48
● 2017-03-25 06:10:34
○ 2020-03-09 12:59:28
○ 2026-04-25 12:48:42

●NSsullivan.ns.cloudflare.com2026-04-23 → 2026-04-25 · 3 obs

○ 2020-03-09 12:59:28
● 2026-04-23 08:15:34
● 2026-04-25 12:48:42

○MXmail.h-email.net2015-08-06 → 2017-03-25 · 6 obs

● 2015-08-06 11:02:06
○ 2015-12-11 09:12:20
○ 2016-07-12 09:35:48
● 2017-03-25 06:10:34
○ 2020-03-09 12:59:28
○ 2026-04-25 12:48:42

○MXopen-sec.org2015-12-11 → 2016-07-12 · 5 obs

○ 2015-08-06 11:02:06
● 2015-12-11 09:12:20
● 2016-07-12 09:35:48
○ 2017-03-25 06:10:34
○ 2026-04-25 12:48:42

●A104.21.58.852026-04-23 → 2026-04-25 · 3 obs

○ 2020-03-09 12:59:28
● 2026-04-23 08:15:34
● 2026-04-25 12:48:42

○A113.208.63.1102015-12-11 → 2016-07-12 · 5 obs

○ 2015-08-06 11:02:06
● 2015-12-11 09:12:20
● 2016-07-12 09:35:48
○ 2017-03-25 06:10:34
○ 2026-04-25 12:48:42

●A172.67.158.992026-04-23 → 2026-04-25 · 3 obs

○ 2020-03-09 12:59:28
● 2026-04-23 08:15:34
● 2026-04-25 12:48:42

○A185.53.177.92015-08-06 → 2015-08-06 · 3 obs

● 2015-08-06 11:02:06
○ 2015-12-11 09:12:20
○ 2026-04-25 12:48:42

○A185.53.178.92017-03-25 → 2017-03-25 · 4 obs

○ 2016-07-12 09:35:48
● 2017-03-25 06:10:34
○ 2020-03-09 12:59:28
○ 2026-04-25 12:48:42

●A2606:4700:3037::6815:3a552026-04-23 → 2026-04-25 · 3 obs

○ 2020-03-09 12:59:28
● 2026-04-23 08:15:34
● 2026-04-25 12:48:42

●A2606:4700:3037::ac43:9e632026-04-23 → 2026-04-25 · 3 obs

○ 2020-03-09 12:59:28
● 2026-04-23 08:15:34
● 2026-04-25 12:48:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
open-sec.org	sullivan.ns.cloudflare.com, dahlia.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.89

NS records: sullivan.ns.cloudflare.com, dahlia.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for open-sec.org (unsigned zone)

⏱️ Timing

Total: 771ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.58.85, 172.67.158.99`
AAAA	2	`2606:4700:3037::6815:3a55, 2606:4700:3037::ac43:9e63`
NS	2	`dahlia.ns.cloudflare.com, sullivan.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`dahlia.ns.cloudflare.com dns.cloudflare.`

Analysis

Hierarchy

open-sec.org is a parent of mail.open-sec.org.

IP Addresses

open-sec.org resolves to four IPs: 2606:4700:3037::6815:3a55, 2606:4700:3037::ac43:9e63, 104.21.58.85 and 172.67.158.99.

Other host names such as touringneweden.net, www.lylitai.com, piratgame.net, lylitai.com and www.promericae.cc share IP numbers with open-sec.org.

Name Servers

open-sec.org is delegated to two name servers: dahlia.ns.cloudflare.com and sullivan.ns.cloudflare.com.

open-sec.org uses the same name server setup as other domains, including chatbooks.org, freedupthoughts.com, techweirdo.com, officess-setup.com and emsnation.org.

At least part of the name servers for open-sec.org are shared with other domains, for instance sayonesolution.com, outerbankslaw.com, trendingamerican.com, infiniteproxies.com and hsimagazine.com.

These name servers are commonly used alongside the name servers sunny.ns.cloudflare.com.

Host names with six IP numbers:

dahlia.ns.cloudflare.com points to: 2606:4700:50::adf5:3a59, 2803:f800:50::6ca2:c059, 2a06:98c1:50::ac40:2059, 108.162.192.89, 172.64.32.89 and 173.245.58.89.

sullivan.ns.cloudflare.com points to: 2606:4700:58::a29f:2ca1, 2803:f800:50::6ca2:c3a1, 2a06:98c1:50::ac40:23a1, 108.162.195.161, 162.159.44.161 and 172.64.35.161.

open-sec.org - robtex.com

open-sec.org

org

Previously MX for

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

`open-sec.org`

`org`